Factory Small Cassava Starch Rotary Drum Dryer Scraper Dryer With Best Price

HG rotatary scraper roller drying machine is a kind of rotating continuous drying equipment with internal heating conducting-style. Certain thickness of materials film attach to the drum from material liquid vessel under the drum. Heat is transferred to the internal wall of the cylinder through pipes and then to the external wall and to materials film, to evaporate the moisture in materials film so as to dry materials. Dried products are then scraped off by the blade fitted on the surface of the cylinder, fall down to the spiral conveyor under the paddle, and are conveyed, collected and packed.

Working principle of roller scraper dryer

Drying process: Let the liquid or muddy material form a film on the surface of the drum heated by steam or other heat carriers. The drum is dried in one revolution. The product is scraped off with a scraper, and the exposed surface of the drum comes into contact with the raw material again. And form a film to dry.
The drum scraper dryer uses a certain method to spread the liquid or pasty material on the drum (hollow metal cylinder) with a 0.1-1.5mm film. The drum can be heated with steam, hot water or thermal oil. When the drum rotates once, the material can be dried and scraped off the surface of the cylinder by a special scraper. The drum scraper dryer generally rotates at a speed of 4 to 6 rpm.
The drying of the paste-like material is to adjust the thickness of the material and to compact the material layer. On the side close to the feeding device, a material compression shaft is installed to make the material evenly spread on the drum. In order to make the material easier to fall off when the scraper discharges the material, before the scraping, the cold air pipe can also be used to blow a certain amount of cold air to cool the material.

Technical parameters

Features of drum scraper dryer
- Lower consumption and operation cost
- Capable to dry different kinds of product
- Stable operation
- Uniform dried product
- Both dryer and calciner, operation Temp. Up to 1000°C
- Heat source can be steam, electricity, coal, natural gas etc.

Sale service:

In order to fulfill the contract smoothly, establish a good cooperative relationship, here's are several points what we must do.
(1). ensure product with high quality and pre-commissioning before delivery
(2). delivery on time
(3). provide full set of documents as customer’s requirements

After-sale service:
Provide considerate services to minimize customers’ worries.
(1). Assist customers to prepare for the first construction scheme.
(2). Install and debuging the drying equipment.
(3). Train the first-line operators.
(4). Exame the drying equipment.
(5). Take initiative to eliminate the troubles rapidly.
(6). Provide technical support.
(7). Establish long-term and friendly relationship with all my customers.

Service commitment:
We provide customers 12-months warranty to make sure the machine work well, and always keep certain inventory level of spare parts, which means the replacements can be sent to you timely. At the same time, we send every customer a preferential and reasonable quotation.